Tamping-tool.



D. F. VAUGHAN.y

TAMPING rom.

APPLCATON FILED JULY 25,197' 1,260,602. n Patented Mar. 2b, 1918.

2 SHEETS-SHEET l.

D. F. VAUGHAN.

TAMPNG TOOL.

APPLICATION FILED IuLYzs. 1917.

Patented Mar. 26,1918.

d FTNT DAVID F. VAUGHAN, OF RIVERTON, NEW JERSEY.

TAMPING-TOOL.

Specification of Letters Patent.

Patented Mar. 2G, MMS..

Application led July 26, 1917. Serial No. 182,876.

To all whom t may concern:

Be it known that I, DAVID F. VAUGHAN, a citizen of the United States, residing at Riverton, in the county of Burlington and State of New Jersey, have invented certain new and useful Improvements in Tamping Tools, of which the following is a specification.

My invention relates to improvements in tamping tools for use in tamping railroad ballast and analogous uses.

Tamping tools for this purpose are usually in the form of picks and bars operated by hand or by suitable mechanical devices, the picks and bars having substantially fiat, impact, end portions adapted to strike against the material being tamped.

Heretofore tamping tools have been objectionable because, when in use, the impact end portions thereof quickly assume a sharp, rounded or pointed form due to wear occasioned by the friction of the tools against the broken stones, gravel or other material being tamped. This quickly decreases the efficiency of the tools, as the impact end portions thus worn 'enter between the pieces of ballast material and separate them instead of driving them into the desired position during the tamping operation, and require the impact end portions to be reforged to produce fresh, substantially flat, impact portions thereon. This requirement is not only accompanied by the great objection that the body member of the tool, having the impact end portion, gradually grows shorter under successive reforging operations, but also by the further objection that much time is lost by the tools remaining out of service before, during and after the reforging operations, as it is necessary to send them to suitable shops for this purpose.

The object of my invention is to overcome or greatly lessen the objections above set forth; and I accomplish my object by the provision of a tamping tool of novel, simple and efficient construction: first, having an impact end` portion which in service can not be worn into the objectionable sharp,

rounded or pointed form; and, second, having the impact end portion thereof formed on an impact member which is removably engaged with the operated body member of the tool and which, when it wears down, may

be readily removed from the body member and substituted by a new one at comparatively little expense.

With this and related objects in view, my invented tool consists of the elements and the combinations of them hereinafter described and claimed.

In the accompanying drawings, illustrating my lnvention:

Figure l is a side view of a tamping tool embodying my invention and showing the body member thereof in the form of a hand Fig. 2 is a side view of a tamping tool embodying my, invention and showing the body member thereof in the form of a pick.

Fig. 3 is a side view of the end portion of the body member of the tool which receives the impact member, having the impact member removed therefrom.

Fig. i is a face view of the part shown in Fig. 3.

Fig. 5 is a bottom view in Fig. 3.

Fig. 6 is a view similar to Fig. 5, showing the impact member applied to the body member.

F ig. 7 is a perspective view of the impact member removed from the body member.

Fig.l S is a view similar to Fig. 4, showing the impact member applied to the body member.

Fig. 9 is a view of the parts shown in Fig. 8, showing the impact member in section.

Fig. 10 is an end view of the impact member detached from the body member.

Fig. 11 is an end View of a modified form of the impact member.

Fig. 12 is a View similar to Fig. 8, showing the modified form of the impact member illustrated in Fig. 11.

Referring to the drawings, 2 designates the body member which may be of any suit able shape and size for its intended purpose to be operated either by hand or by power devices during the tamping operation.

vThe body member 2 has an end portion 3 which is adapted to be driven down toward the material being tamped; and this end portion 8 is provided with an impact member 4 which is adapted to strike against the said material, during the tamping operaof the part shown tion, and which is preferably made separate and detacha'blefrom the body member 2, as will 4be hereinafter explained.

The end portion 3 of the body member 2 is reduced, as illustrated, `providing a-projecting tongue 5 to receive the impact member il, and providinor shoulders G at the base of the tongue 5. The member 4 is formed of suitablehard, resilient metal adapted When sprung from a normal condition `to continue to tend to resumefsa'id normal conditionLfor a purpose hereinafter explained.

4The impact niember'll is preferably nlade in the `form of abaiid and 'shaped'to lit closely around the projecting tongiieV 5 \vhen "tfis 'driven on tothe samegland, as'illustrated i1ilf`igs.6, 7 "andl0,*one side of the memberd'is split, at 7;"andQin tliefn'ormal condition of the member'r, as shown in Figs. 7 Land A10, the free arms S, formed by the split side of the 1nember.i,are inclined inivardly,"so Ithat then'orm'al distance between themV and the opposite side of the member t Will beleesthantlre thickness of the projecting tongue 5` ofthe body member 2. izV'hen the'iinpactinember 1l-is' driven on to the tongue l5, the arms 8 Will 'be sprung outivai'dly by the tongue to a position parallel with thelopposite side of the member if and Witlr the facey of the tongue 5 against which they bear, sothat, afterthe'inember l "has been driven on tok thetongue 5, as s iown in Figari, 2, G, Sand 9, the arms '8, in tending to resume their said normal or inwardly' inclined condition, will stjueeze theltongue 5 between them and the opposite sideof the member fl, and therebyk 'firmly hold the membe'r 4 in place upon the tongue 5 land prevent its accidental removal or displacement therefrom. 4

n Inlthe modified form of` the impact member l illustrated rin Figs. 1l and 12, instead offorming the mem'berd with a split side, as hereinbefore describechl form the member l with opposite sides 9 which, in the 'normal `coi'idition of the member, as illustrated in Fig. 1l, are curved or bowed in- `niardly, 'so that thev normal `distance lbetn'een the sides`9 will beV less than the thickness of the projecting tongue 5. When this modified form of the impact member Lf is' driven on tothe tongue 5,' the sides v9 thereofivill be sprung 'outwardly "by the tongue, andn thereafter, they will squeeze the tonglie between them and thereby firmly hold the member in place upon'the tongue, as they lte'rid to resume their normal condition.

One side ofthe free end 'of the tongue 5 is beveledfat 10, 4to permit the impact "member 4 to vbe Idriven'fon to the same, as will be readily understood 5 and, the member Lf,"\vhen it is applied to the 'body member, driven 'on to the tongue 5 until the inner or basal end Sof the member l cornes into engagement with the shoulders 6 which prevent further inward -movement of the member 5 both while being appliedto the body member Q and afterward when the tool is in service.

g The sizeof the impact member if is such that,'after it has been driven on to the body member 2 and into engagement With the shoulders G thereof, the outer or impact end portion ofthe member t will project beyond the outer end of the tongue 5 and surround tand inclose an open space 11, as clearly shown in the drawings.

After the impact iiieinher 4 `jlias l)been driven on to the bodymember 2, the-ends* of the'inner 'or basa l"encl"of thefmemberft proj ect beyond theY outer face` of the* body member 2 to bel engaged'bya hammer or 'other suitable instrument'andthereby Apermit the member 43 to:i be readily drivenbl' from the tongue 5, when it is desired to removethe impact member from4v the Abody member.

lVhen the"mpact member 1:tfis inplace upon the body member 2, the 4face-ofthe free outer end or bottom` `of the 'member d forms the impact face Whiclr'strilres against tlie material bein-g'tamped, airchlas this facet of the member "/i always surrounds vaWcential, open space," until the outer -or impactv "endf'of the member 4 is worndoivn to the' outer end ofthe 'ton-gue :5, itwill be impossible for the impact `end ofthe member 4, as iai Wholefto `be Worn into a "sharp, romded orpointed form, `and its character will alivaystbe such as to provide `an ellicient impact surface which Will engagethe pieces 'ef broken stones, `gravel 'or other material "being tamped and drive `them i-nt'o the desired tamped position.

After 'the outer end portion of the impact member t'lias Abeen vvo'r'n dowvn toor near the iouterend of the itoiigne Aof the body. portion 2, the Worn impact member kl is fremoved from the body mernber f2 and ai new impact member froma lot kept on hand for the purpose is driven oir to the tongue5`in siibstitution Vfor the Worn memberfaspreviously explained, andf'ihe tamping toolis againready for "service," and little time "is `lost in changing the impactmenlbers.

s'the Aimpact imembers Lfmade inl accordanccivith my invention, y'may be manufactured at little cost, the `cost oftnaintaining the tamping tool inanefficient conditien Vwill besl'i-ght, andthe "length of the body member 2"carrying the impact `mei'nber et will remain uni-m'paired.

"I claim: y

1l. A tamping ltool comprising a body member, and a removable impabt 4member enga'gedW-ith 'the bod-y member, one yof said members 'havin-g a resilient 'part sprung from a normaljcondition `and"'enga-ging"a part of the other member, and-'said members being held 'in-engagement vv'ith each other by` the-action of said. part in tending to resume its normal condition.

2. A tamping tool comprising a body member, and a removable impact member engaged With the body member, said impact member having a resilient part sprung from a normal condition and engaging said body member and holding said members in engagement With each other in tending to resume said normal condition. p

3. A tamping tool comprising a -body member having a reduced end portion providing a shoulder at the base thereof, and a removable impact member embracing said portion and being adapted to engage said shoulder, said impact member being movable on said end portion toward and from said Shoulder.

4. A tamping tool comprising a body member having a reduced end portion pro viding a shoulder at the base thereof, and a removable impact member embracing said portion and being adapted to engage said shoulder, one of said members having a resilient part sprung from a normal condition and engaging a part of the other member, and said members being held in engagement with each other by the action of said part in tending to resume its normal condition.

5. A tamping tool comprising a body member having a reduced end portion providing a shoulder at the base thereof, and a removable impact member embracing said portion and being adapted to engage said shoulder, said impact member having a resilient part sprung from a normal condition and engaging said end portion and being held thereon by the action of said part in tending to resume its normal condition.

6. A tamping tool comprising a body member, and a hollow impact member reu movably engaged with the body member, one of said members having a resilient part sprung from a normal condition and engaging a part of the other member, and said members being held in engagement with each other by the action of said part in tending to resume its normal condition.

7. A tamping tool comprising a body member, and a removable impact member in the form of a band surrounding and engaging the body member, the inner Wall of said band substantially conforming to the outer Wall thereof in spaced relation thereto.

8. A tainping tool comprising a body member, and a removable impact member in the form of a band surrounding and engaging the body member, said impact member inclosing an open space beyond the body member, the inner Wall of said band substantially conforming to the outer wall thereof in spaced relation thereto.

9. A tamping tool comprising a body viding a shoulder at the base thereof, and a removable impact member in the form of a band surrounding and engaging said end portion and being adapted to engage said shoulder.

1l. A tamping tool comprising a body member having a reduced end portion providing a shoulder at the base thereof, and a removable impact member in the form of a Aband surrounding and engaging said end portion and being adapted to engage said shoulder, and said impact member inclosing an open space beyond the body member.

l2. A taniping tool comprising a. body member, and .a removable impact member in the form of a band surrounding and engaging the body member, said impact member having a resilient side sprung from a normal condition and engaging said body portion and being held thereon by the action of said side in tending to resume its normal condition. y

13. A tamping tool comprising a body member having a reduced end portion providing a shoulder at the base thereof, and a removable impact member in the form 0f a band surrounding and engaging said end portion and being adapted to engage said shoulder, said impact member having a resilient side sprung from a normal condition and engaging said end portion and being held thereon by the action of said side in tending to resume its normal condition.

14. A tamping tool comprising a body member, and a removable impact member in the form of a band surrounding and engaging the body member, said impact member having a split side sprung from a normal condition and engaging said body portion and being held thereon by the action of said side in tending to resume its normal condition.

l5. A tamping tool comprising a body member having a reduced end portion providing a shoulder at the base thereof, and a removable impact member in the form of a band surrounding and engaging said end portion and being adapted to engage said shoulder, said impact member having a split side sprung from a normal condition and engaging said body portion and being held thereon by the action of said side in tending to resume its normal condition.

16. Atamping tool comprising a body member `having :fa reduuzed end porton :providing azshoulclerat'tle base thereo'fVand a lvemovablefmpact membern the form of a band :surrounding and engaging saidend portion :and being 'adapted lto .engage :Said shoulder, said impactmemberahaving a .Split side sprung .ffom )a Snomml condition .and engaging Said body `portoniandfbengrheld -yond @thai bmly member.

`In` testimony wh eredi I aifxtmyfsgnature herto.

'DAVID F. VAUGHAN.

-Copiesnfthis patent-maybe obtainedfor fivenents each, by addressing -'cheJlommissoner.OL-IE'ateJrS, \X.T=za.shing'con,V CD. JC. 

